Question My computer restarts when I start a game! Help

[mode10]

Hi guys
i bought a used graphics card Vega 64 LC, and after setting the definitions and settings, I went to play one of the games i have, but after I started playing a few seconds and my computer restart, I repeated it several times and nothing change, I cann't play any game anymore, what should i do? please help me.

The specifications:
Asus P8Z68-V Pro
Intel Core i7 2600K
XFX Radeon Liquid Cooled Rx Vega 64
Corsair DDr3 8GB 1600mhz
GIGABYTE 850W

 

[rgd1101]

what the gpu temp?
try lower the settings on the gpu? downclock etc

 

[Deleted member 2731765]

Sounds more like a PSU issue to me though....

 

[rgd1101]

https://www.amd.com/en/technologies/radeon-software-wattman

also did you use gpuz to check the gpu bios. make sure it wasn't using a mod bios

 

[mode10]

what the gpu temp?
try lower the settings on the gpu? downclock etc

the GPU temp is very good
how?

 

[mode10]

though

How is that? it's 800 watts power supply

 

[rgd1101]

problem with old motherboard, they can't handle the power draw from the gpu.

 

[mode10]

https://www.amd.com/en/technologies/radeon-software-wattman

also did you use gpuz to check the gpu bios. make sure it wasn't using a mod bios

 

[rgd1101]

TechPowerUp

Extensive repository of graphics card BIOS image files. Our database covers submissions categorized by GPU vendor, type, and board partner variant.

www.techpowerup.com

look fine.

get amd wattman and try downclock. lower power

 

[mode10]

I put the GPU in other pc and it work fine, but when i use some benchmark test the pc shut down, No warning no blue screen no time for a crash log to be written its like someone pulled the plug, and the same thing when i play strong game at ultra settings after several minutes.

The pc Specifications:
Ryzen 7 1700x
24GB DDR4 ram
850w corsair platinum